Dr. Shivakumar Narayanan, MD

Dr. Narayanan practices at University of Maryland Medical Center in Baltimore, Maryland, part of University of Maryland Medical System.

Dr. Narayanan's NPI, 1699939074, was assigned on July 15, 2008. Dr. Narayanan holds Maryland license D82080.

Dr. Narayanan's primary practice is University of Maryland Medical Center, at 22 South Greene Street, Baltimore, MD 21201 in Baltimore City. The practice phone is (410) 328-8667.

Dr. Narayanan's primary practice is University of Maryland Medical Center in Baltimore, Maryland, part of University of Maryland Medical System. Dr. Narayanan is also affiliated with University of Maryland Medical Center Midtown Campus. The medical group on file is University of Maryland Medical Center Gastroenterology and Hepatology.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Narayanan practices, 2 sites in all. Vendor and product names are available with a free account.

Infectious disease is Dr. Narayanan's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Narayanan is licensed in Maryland.

CMS data shows 204 Medicare services from Dr. Narayanan across 4 procedure codes in 2024, for 110 Medicare patients. Medicare paid $19,662 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 110 Medicare patients who saw Dr. Narayanan in 2024. The largest group is 65 to 74, with 39 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 41% are also on Medicaid. Their average risk score is 3.75, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Narayanan's median patient age at 61, with 42% women.

In 2024, Dr. Narayanan wrote 536 Medicare Part D claims for 41 patients. 63% of them were for generic drugs. CMS names the drug for 345 of them, across 12 drugs with 11 or more claims each, at $450,041 in total drug cost. In 2023, CMS named 307 claims across 16 drugs.

Dr. Narayanan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Dmand AI links 21 papers to Dr. Narayanan, published from 2012 to 2025. 2021 was the busiest year, with 4. The most frequent topics are COVID-19, SARS-CoV-2 and Anti-Bacterial Agents. Dr. Narayanan has published most often in Open Forum Infect Dis. Dr. Narayanan's most frequent co-authors are Joel Villanueva Chua, Patrick Rave Ching, MD, MPH and Edward C. Traver, MD.

CMS Open Payments shows 2 general payments to Dr. Narayanan from 2 drug and device companies from 2021 to 2023. Food and beverage make up the largest share, 100% of the total. Ardelyx, Inc. paid the most, $23.